Supply station with door shield

ABSTRACT

A door assembly is described. The door assembly includes a door structure that is mounted over an opening of an enclosure. The door structure includes a body that includes a first surface and a second surface opposite to the first surface. The first surface may face an inside of the enclosure when the door structure is closed. The door structure includes a number of finger bracket structures mounted on the first surface. Each one of the finger bracket structures includes a bracket and one or more finger gaskets coupled to the bracket. The finger gaskets of the finger bracket structures may contact enclosure brackets mounted around an edge of the opening of the enclosure when the door structure is closed. A combination of the finger gaskets in contact with enclosure brackets may create an electromagnetic interference (EMI) shield at the edge of the opening of the enclosure.

CROSS-REFERENCE TO RELATED APPLICATION

This is a continuation of U.S. patent application Ser. No. 16/536,394,filed on Aug. 9, 2019, entitled “SUPPLY STATION WITH DOOR SHIELD,” whichissued as U.S. Pat. No. 10,785,899, on Sep. 22, 2020, which is acontinuation of U.S. patent application Ser. No. 15/977,758, filed onMay 11, 2018, entitled “SUPPLY STATION WITH DOOR SHIELD,” which issuedas U.S. Pat. No. 10,420,258 on Sep. 17, 2019, the disclosures of whichare hereby incorporated by reference in their entirety for all purposes.

FIELD OF THE INVENTION

The present invention generally relates to supply stations that areequipped for reading radio-frequency identification (“RFID”) tags andmore particularly relates to supply stations with doors that shieldradio frequency (“RF”) signals.

BACKGROUND

Supply stations such as supply cabinets may be used for storing medicalsupplies. Medical supplies may be equipped with RFID tags and the supplycabinet may be equipped with RF transceivers to transmit RF signals toread RFID tags of medical supplies. In response to transmit RF signals,the RF transceiver may detect received RF signals from the RFID tags togenerate an inventory list of the medical supplies. Every time themedical supply door is closed the RF transmitter may transmit RF signalsto read the RFID tags of remaining medical supplies to update theinventory list.

SUMMARY

In some instances, the RF signal may leak outside the supply cabinet orthe transceiver may receive RF signals from outside the supply cabinet.As a result, the RF transceiver can read RFID tags of items outside thesupply cabinet or even may read the RFID tags of items in neighboringsupply cabinets. Therefore, it is desirable to seal the medical supplycabinet against RF signals going out or coming in. In order to seal thesupply cabinet the body of the supply cabinet may be made of a materialthat attenuates RF signals. A door of the supply cabinet can also bemade of a material to limit, restrict, or prevent RF signals frompassing through it. It is also desirable to limit, restrict, or preventRF signal leakage from the openings between the door of the supplycabinet and the supply cabinet body.

In many instances, it is desirable to generate an inventory list of thesupply items, such as medical supplies, that may exist in a supplycabinet. For example, the inventory list may be generated when thesupply cabinet door closes. The supply items may be equipped with RFIDtags or other tags that may be queried by sending RF signals. The supplycabinet may be equipped with a transceiver that may include a detector,a processor, and a memory, and the transceiver may send and receive RFsignals to read the tags and to generate the inventory list. In theseinstances, it is desirable that RF signals do not leak to outside of thesupply cabinet and, in particular, RF signals may not leak from outsideto inside of the supply cabinet. Therefore, by electromagneticinterference (“EMI”) shielding the supply cabinet when the supplycabinet door closes, the transceiver may generate an inventory list ofsupply items inside the supply cabinet.

According to various aspects of the subject technology, a shieldassembly is provided. The shield assembly includes a closing structureconfigured to be mounted over an opening of an electromagneticinterference (EMI) shielded enclosure. The closing structure includes aninner surface configured to face an inside of the EMI shielded enclosurewhen the closing structure is closed and a finger bracket structuremounted on the inner surface, the finger bracket structure comprising abracket and one or more finger gaskets coupled to the bracket. Theshield assembly also includes an EMI shielded gasket having a rodcoupled to a frame disposed around the opening of the EMI shieldedenclosure.

According to various aspects of the subject technology, a method ofsealing radio frequency (RF) signals inside an electromagneticinterference (EMI) shielded enclosure is provided. The method includesconfiguring a closing structure to be mounted over an opening of the EMIshielded enclosure, wherein the closing structure comprises an innersurface, facing the inner surface to an inside of the EMI shieldedenclosure when the closing structure closes, mounting a finger bracketstructure to the inner surface, wherein the finger bracket structureincludes a bracket and one or more finger gaskets coupled to thebracket, mounting a frame around the opening of the EMI shieldedenclosure, coupling an EMI shielded gasket having a rod to a hinge sideof the frame and a hinge side of the closing structure, and attenuatingEMI signals passing through a slot between the closing structure and theframe to shield an edge of the opening of the EMI shielded enclosure.

The foregoing has outlined generally the features of the presentdisclosure in order that the detailed description that follows can bebetter understood. Additional features and advantages of the disclosurewill be described hereinafter, which form the subject of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the present disclosure, and theadvantages thereof, reference is now made to the following descriptionsto be taken in conjunction with the accompanying drawings describingspecific aspects of the disclosure, wherein:

FIG. 1 illustrates a front view of an example supply cabinet, accordingto some aspects of the disclosure.

FIG. 2 illustrates a top view of an example supply cabinet with ajardoor, according to some aspects of the disclosure.

FIG. 3 illustrates a front view of an inside surface of an examplecabinet door structure, according to some aspects of the disclosure.

FIG. 4 illustrates an example finger bracket structure, according tosome aspects of the disclosure.

FIG. 5 illustrates a top view at the latch-side of an example cabinetdoor structure, according to some aspects of the disclosure.

FIG. 6 illustrates a top view at the hinge-side of an example cabinetdoor structure, according to some aspects of the disclosure.

FIG. 7 illustrates a side cutaway view of an example supply cabinet,according to some aspects of the disclosure.

FIG. 8 illustrates a top view at the latch-side of an example cabinetdoor structure with door ajar, according to some aspects of thedisclosure.

FIG. 9 illustrates a top view at the hinge-side of an example cabinetdoor structure with door ajar, according to some aspects of thedisclosure.

FIG. 10 illustrates a side cutaway view of an example supply cabinet,according to some aspects of the disclosure.

FIG. 11 illustrates a flow diagram of an example process of sealing asupply cabinet, according to some aspects of the disclosure.

DETAILED DESCRIPTION

The detailed description set forth below is intended as a description ofvarious configurations of the subject technology and is not intended torepresent the only configurations in which the subject technology can bepracticed. The appended drawings are incorporated herein and constitutea part of the detailed description. The detailed description includesspecific details for the purpose of providing a thorough understandingof the subject technology. However, it will be clear and apparent tothose skilled in the art that the subject technology is not limited tothe specific details set forth herein and can be practiced using one ormore implementations. In one or more instances, well-known structuresand components are shown in block diagram form in order to avoidobscuring the concepts of the subject technology.

According to some implementations, the subject technology provides adoor assembly for a supply cabinet such as a medical supply cabinet. Thesupply cabinet can be used for storing supply items. In some examples,the supply cabinet can be used for storing medical supplies. The itemsmay be equipped with RFID tags or other tags that can be invoked bytransmitting RF energy, e.g., RF signals. The supply cabinet may beequipped with RF transmitter for sending RF signals to read RFID tags aswell as a receiver and/or detector to receive the RF signals back fromthe items and to detect the RFID tags. The receiver may keep aninventory of the items inside the supply cabinet. Therefore, it isdesirable that the transmitter does not send RF signal outside thesupply cabinet.

In some instances, it is desirable that the receiver does not receive RFsignals from outside the supply cabinet. Thus, the supply cabinet bodyincluding the sides, the back, the top and bottom, and the door may beshielded against EMI such that RF energy is considerably attenuated whenpassing through the body the supply cabinet. However, RF signals may getthrough the opening that may exist between a cabinet door and the bodyof the supply cabinet.

In some examples, the supply cabinet includes a doorframe, and the dooris connected to the doorframe. Openings may exist between the doorframeand the cabinet door. In some examples, the cabinet door includes afirst surface facing an inside of the supply cabinet and a secondsurface opposite to the first surface and facing an outside of thesupply cabinet. Around the doorframe, one or more enclosure brackets maybe mounted. The enclosure brackets may extend outside of the cabinetenclosure. The first surface of the cabinet door facing the inside ofthe supply cabinet may have an outer border area and a recessed innerborder area, surrounded by the outer border area. The outer border areamay extend to the edges of the cabinet door. In some examples, theenclosure brackets may be received in the recessed inner border areawhen the door is closed.

One or more finger bracket structures may be mounted in the recessedinner border area next to the outer border area, with a clearingdistance of a predetermined length from the outer border area. Thefinger bracket structure may comprise a bracket and one or more fingergaskets coupled to the bracket. The one or more finger gaskets of theone or more finger brackets structure may extend in the clearingdistance and may touch the enclosure brackets that are received in therecessed area when cabinet door is closed. The combination of theenclosure brackets and the finger bracket structures touching each otherin the recessed area may provide a primary mechanism to seal the cabinetdoor of the supply cabinet. The combination may highly attenuate RFenergy existing from the opening between the doorframe and the cabinetdoor.

In some embodiments, a first type of a secondary barrier may exist onthe vertical hinge of the cabinet door to seal the cabinet door. Thesecond barrier may be made of fabric over foam and may extend from a topof the cabinet door to the bottom of the cabinet door. The secondbarrier may further attenuate RF energy that may exit, e.g., escape, orenter from the hinge-side of the cabinet door. In some embodiments, asecond type of secondary barrier may exist in the form of an RF fencebracket at the latch-side of the cabinet door. The RF fence bracket mayextend from top of the doorframe to bottom of the doorframe. An edge ofthe RF fence bracket can create a narrowing with an edge of the cabinetdoor at the latch-side of the doorframe to make it difficult for RFenergy to exit or enter from the latch-side of the cabinet door.

FIG. 1 illustrates a front view of an example supply cabinet, accordingto some aspects of the disclosure. As shown, a supply cabinet 100 ofFIG. 1 includes a hinge-side cabinet wall 106 and a cabinet doorstructure 102 having a latch 116 and a clear cabinet window 104. In someexamples, cabinet door structure 102 is mounted via a doorframe tosupply cabinet 100. The doorframe may include a latch-side portion 108,a hinge-side portion 110, a top-side portion 112, and a bottom-sideportion 114. As the door may swing open, there may be an opening betweenthe doorframe and cabinet door structure 102. In some examples,hinge-side portion 110 of the doorframe is coupled to a hinge-side ofthe cabinet door structure 102 and latch-side portion 108 of thedoorframe is configured to couple to a latch-side of the cabinet doorstructure 102. In some embodiments, the doorframe is mounted around theedge of an opening of cabinet enclosure 210 and enclosure brackets 202that are coupled to one or more sides of the doorframe extend outside ofcabinet enclosure 210. In some examples, a door assembly includescabinet door structure 102 and the doorframe coupled to cabinet doorstructure 102.

FIG. 2 illustrates a top view of an example supply cabinet with an ajardoor, according to some aspects of the disclosure. As shown supplycabinet 200 of FIG. 2, that is consistent with supply cabinet 100 ofFIG. 1, includes cabinet door structure 102, top-side 206 of supplycabinet, and latch-side cabinet wall 208 of supply cabinet. As shown,cabinet door structure 102 is open and cabinet enclosure 210 isaccessible. Supply cabinet 200 also shows top-side portion 112 ofdoorframe and latch-side portion 108 of doorframe that are coupledaround the opening of cabinet enclosure 210. In some examples,hinge-side portion 110 of doorframe (FIG. 1) is coupled to a hinge-sideof cabinet door structure 102 via hinge rod 212. Additionally, shown inFIG. 2, are enclosure brackets 202, which extend outward from edges ofthe doorframe. Enclosure brackets 202 are coupled to the hinge-sideportion 110 of the doorframe, the latch-side portion 108 of doorframe,and the top-side portion 112 of doorframe. In addition, one or moreenclosure brackets 202 may be coupled to the bottom-side portion 114(not shown) of doorframe. Enclosure brackets 202 are described in moredetails with respect to FIGS. 5-10. In some embodiments, bracket 204 ismounted on the latch-side portion 108 of doorframe. Bracket 204 isdescribed in more details with respect to FIG. 5.

FIG. 3 illustrates a front view of an inside surface of an examplecabinet door structure, according to some aspects of the disclosure.FIG. 3 shows an inside surface 300 of cabinet door structure 102 ofFIGS. 1 and 2 that is configured to face an inside of supply cabinet100. One or more finger bracket structures 302 are coupled to insidesurface 300 of cabinet door structure 102. In some examples, outerborder area 304, which may be elevated, compared to the rest of insidesurface 300, is next to edges 314 of the cabinet door structure 102. Insome examples, a recessed inner border area 312 is recessed compared tothe outer border area 304, and may form a recessed inner border area,positioned between the cabinet window 104 and the outer border area 304.Finger bracket structures 302 may be coupled to the inner border area312 and next to the outer border area 304 with a clearing distance 306of a predefined length between the finger bracket structures 302 and theouter border area 304. In each side of cabinet door structure 102 theremay be more than one finger bracket structure 302 coupled serially, sideby side about the door structure 102. Finger bracket structures 302, asshown in FIG. 3, may be adjusted in position inleft-to-right/right-to-left and up-to-down/down-to-up directions. Theclearing distance 306 and finger bracket structures 302 are described inmore details with respect to FIGS. 4-10.

As shown in FIG. 4, in some embodiments, one or more finger gaskets 402of the one or more finger bracket structures 302 of FIG. 3 may contactone or more enclosure brackets 202 of FIG. 2. The finger bracketstructures 302 may contact enclosure brackets 202 around an edge of theopening of the cabinet enclosure 210 when the door structure is closed.A combination of the finger gaskets 402 in contact with the enclosurebrackets 202 may create an electromagnetic interference (EMI) shield atthe edge of the opening of cabinet enclosure 210. In some examples,enclosure brackets 202 are Electroless Nickel plated to preventcorrosion and wear.

FIG. 4 illustrates an example finger bracket structure, according tosome aspects of the disclosure. As shown, finger bracket structure 302of FIG. 4 includes finger gasket structure 408 that includes a pluralityof finger gaskets 402. Additionally, finger brackets structure of 302includes bracket 404 that may include one or more slotted holes 406. Asshown by inside surface 300 of FIG. 3, there may be one or more fingerbracket structures 302 on each side of the cabinet door structure.Finger bracket structures 302 can be adjusted in place through slottedholes 406 via screws and/or nuts and bolts that attach finger bracketstructures to the inside surface of cabinet door structure 102. In someexamples, the finger gaskets 402 of the finger bracket structures 302are made from Beryllium Copper and are Electroless Nickel plated toreduce or limit corrosion and wear. In some examples, after brackets 404are adjusted in place, finger gasket structures 408 may be clipped intoadjusted brackets 404. In some embodiments, finger gasket structure 408may include a body that folds around an edge of bracket 404. In someexamples, finger gasket structure 408 may include a narrow body that isattached to a face of bracket 404.

FIG. 5 illustrates a top view at the latch-side of an example cabinetdoor structure, according to some aspects of the disclosure. As shownlatch-side view 500 of FIG. 5 shows cabinet door structure 102,latch-side portion 108 of doorframe, and cabinet enclosure 210. Cabinetdoor structure 102 includes outer border area 304 and inner border area312 that is recessed compared to outer border area 304. Latch-side view500 also shows a first finger bracket structure that is bolted to a topportion of inner border area 312. The first finger bracket structureincludes bracket 404 and finger gasket structure 408. In some examples,latch-side view 500 is a top view and thus may illustrate a top view ofa second finger bracket structure that is bolted to a latch-side portionof inner border area 312 from top to bottom of the inner surface ofcabinet door structure 102. Thus, latch-side view 500 shows a top viewof the second finger bracket structure that includes finger gasket 402that is coupled to bracket 514 that is consistent with bracket 404.Latch-side view 500 also includes latch-side clearing distance 506 thatis consistent with clearing distance 306 of FIG. 3 between bracket 514and outer border area 304. Clearing distance 506 may be adjusted throughnuts and bolts that attach bracket 514 to the inner border area 312.

In some embodiments, latch-side view 500 includes enclosure bracket 508that is consistent with enclosure bracket 202 of FIG. 2, extends alongtop-side portion 112 of doorframe, and protrudes out of the cabinetenclosure 210. Enclosure bracket 508 may be coupled to top-side portion112 of doorframe as shown in FIG. 2. In some examples, finger gasketstructure 408 of the first finger bracket structure comes into contactwith enclosure bracket 508 in a clearing distance (not shown) at the topof the door when cabinet door structure 102 closes. In some embodimentsas shown in FIG. 5, bracket 404 of the first finger bracket structurethat is coupled to top portion of inner border area 312 may come intocontact with bracket 514. In some embodiments, as shown in FIG. 5,bracket 514 of the second finger bracket structure that is coupled tolatch-side portion of inner border area 312 has no clearing distancewith bracket 404. In some examples, a distance in the order of a widthof finger gasket 402 may exist between brackets 404 and 514.

Also shown is a top view of enclosure bracket 512 that is consistentwith enclosure bracket 202, extends along latch-side portion 108 ofdoorframe, and protrudes out of cabinet enclosure 210. Enclosure bracket512 may be coupled to latch-side portion 108 of doorframe as shown inFIG. 2 and may protrude from the doorframe into the clearing distance506 and may come into contact with finger gasket 402 when cabinet doorstructure 102 closes. As described, enclosure bracket 512 as well asbracket 514 may extend along latch-side portion 108 of doorframe fromtop to bottom of supply cabinet. Bracket 514 may include a plurality offinger gaskets 402 that also extend along latch-side portion 108 ofdoorframe and when cabinet door structure 102 closes, the plurality offinger gaskets 402 come into contact with enclosure bracket 512. Inaddition, RF fence bracket 504 that is consistent with bracket 204 ofFIG. 2 may be coupled to latch-side portion 108 of doorframe and extendsalong latch-side portion 108 of doorframe from top to bottom. Whencabinet door structure 102 closes a narrow path, RF fence gap 510, maybe created between cabinet door structured 102 and RF fence bracket 504.In some examples, RF signals passing through the narrow path may beattenuated and an EMI shield may be created at the latch-side of the EMIshielded cabinet enclosure.

FIG. 6 illustrates a top view at the hinge-side of an example cabinetdoor structure, according to some aspects of the disclosure. As shown,hinge-side view 600 of FIG. 6 shows cabinet door structure 102,hinge-side portion 110 of doorframe, and cabinet enclosure 210.Hinge-side view 600 shows hinge rod 212 of FIG. 2 that cabinet doorstructure 102 may swing around hinge rod 212 to open or close. Cabinetdoor structure 102 includes outer border area 304 and inner border area312 that is recessed compared to outer border area 304. Hinge-side view600 also shows the first finger bracket structure that is bolted to thetop portion of inner border area 312. The first finger bracket structureincludes bracket 404 and finger gasket structure 408. In some examples,hinge-side view 600 is a top view and thus may illustrate a top view ofa third finger bracket structure that is bolted to a hinge-side portionof inner border area 312 from top to bottom of the inner surface ofcabinet door structure 102. Thus, hinge-side view 600 shows a top viewof the third finger bracket structure that includes finger gasket 402that is coupled to bracket 614 that is consistent with bracket 404 ofFIG. 4. Hinge-side view 600 also includes hinge-side clearing distance610 that is consistent with clearing distance 306 of FIG. 3 betweenbracket 614 and outer border area 304. Clearing distance 610 may beadjusted through nuts and bolts that attach bracket 614 to the innerborder area 312. In some embodiments, bracket 404 that is coupled to topportion of inner border area 312 may come into contact with bracket 614of the third finger bracket structure that is coupled to hinge-sideportion of inner border area 312. In some examples, as shown in FIG. 6,a distance in the order of a width of finger gasket 402 may existbetween brackets 404 and 614.

In some embodiments, hinge-side view 600 includes enclosure bracket 508that is also shown in latch-side view 500 of FIG. 5. Enclosure bracket508 extends along top-side portion 112 of doorframe, and protrudes outof the cabinet enclosure 210. In some examples, as shown in FIG. 6,finger gasket structure 408 of the first finger bracket structure comesinto contact with enclosure bracket 508 in a clearing distance at thetop of the door when cabinet door structure 102 closes.

Also shown in FIG. 6 is a top view of enclosure bracket 608 that isconsistent with enclosure bracket 202, extends along hinge-side portion110 of doorframe, and protrudes out of supply cabinet. Enclosure bracket608 may be coupled to hinge-side portion 110 of doorframe and mayprotrude from the doorframe into the clearing distance 610. Enclosurebracket 608 may come into contact with finger gasket 402 when cabinetdoor structure 102 closes. As described, enclosure bracket 608 as wellas bracket 614 of the third finger bracket structure may extend alonghinge-side portion 110 of doorframe from top to bottom of cabinetenclosure 210. Bracket 614 may include a plurality of finger gaskets 402that also extend along hinge-side portion 110 of doorframe and whencabinet door structure 102 closes, the plurality of finger gaskets 402come into contact with enclosure bracket 608. In some embodiments, rod606 of a semi-cylindrical shape that may be made of fabric-over-foam andmay act as EMI shielded gasket is coupled to hinge-side of cabinet doorstructure. Rod 606 may extend parallel to the hinge-side from top tobottom of supply cabinet and may be coupled between the hinge-side 110of doorframe and cabinet door structure 102. In some embodiments, rod606 is shielded from contacting a metal surface when cabinet doorstructure 102 is opened or is closed. Rod 606 may reduce a slot betweenthe cabinet door structure 102 and doorframe to shield the edge of theopening of the cabinet enclosure 210, e.g., to shield the edge of theEMI shielded cabinet enclosure.

In some embodiments, cabinet enclosure 210 may be sealed against EMIsuch that RF signals may not leak out of cabinet enclosure 210 or vice aversa. A body of supply cabinet 100 shown in FIG. 1, including cabinetdoor structure 102 and cabinet window 104, may be made of a materialthat essentially prevents RF energy from passing through the supplycabinet body.

Leakage paths may exist around cabinet door structure 102 and EMI mayexist due to leakage paths around cabinet door structure 102. To reduceleakage of RF energy, the primary EMI barrier is the enclosure bracketsthat come into contact with finger bracket structures. The enclosurebrackets 202 may touch finger gasket structures 408 and finger gaskets402 in the clearing distances between the finger bracket structures andouter border area 304 at top, bottom, and the two sides of cabinet doorstructure 102 to shield the edge of the opening of the cabinet enclosure210.

Secondary EMI barriers may exist along latch-side portion 108 ofdoorframe and along hinge-side portion 110 of doorframe between cabinetdoor structure 102 and cabinet enclosure 210. RF fence gap 510 isdesigned to be a narrow gap to create a torturous path as a secondaryEMI barrier at the latch-side to hinder RF energy leakage along thelatch-side of the cabinet door structure 102. Rod 606 may act as asecondary EMI barrier at the hinge-side of cabinet door structure 102.

In some embodiments, it is important to limit the leakage of RF energyand at the same time make sure that cabinet door structure 102 caneasily be opened or closed. Therefore, in some examples, RF fence gap510 is set at a predetermined distance between 0.01 inches to 0.03inches, e.g., 0.02 inches to keep the RF fence gap 510 small and at thesame time to prevent RF fence bracket 504 from touching cabinet doorstructure 102 and minimize door closing/opening forces. In addition,escape gap 502 may exist in the latch-side portion of inner border area312 between bracket 514 and enclosure bracket 512. Escape gap 502 may bekept between 0.35 inches to 0.55 inches, e.g., 0.45 inches to make surefinger gaskets 402 of bracket 514 may touch enclosure bracket 512 andminimize/reduce door closing/opening forces. In some embodiments, fingergasket structure 408 of first finger bracket structure is coupled tobracket 404 such that when cabinet door structured 102 closes fingergaskets 402 of finger gasket structure 408 touch enclosure bracket 508.The touching of finger gasket 402 with enclosure bracket 508 mayprevents RF energy leakage from top portion of supply cabinet 100 ofFIG. 1. In some embodiments, a similar finger bracket structure mayexist at a bottom portion of inner border area 312 of cabinet doorstructure 102 to prevent RF energy leakage from bottom of supply cabinet100 of FIG. 1. In some embodiments, a similar escape gap in inner borderarea 312 may have a width between 0.35 inches to 0.55 inches, e.g., 0.45inches, at top and bottom portions of inner border area 312. The escapegap width may be selected to make sure finger gaskets 402 of fingerbracket structures 408 coupled to the top and bottom portions of innerborder area 312 may touch enclosure bracket 202 protruding from top-sideportion 112 and bottom-side portion 114 of doorframe. In addition, theescape gap width may be selected to minimize door closing/openingforces.

FIG. 7 illustrates a side cutaway view of an example supply cabinet,according to some aspects of the disclosure. As shown, cutaway view 700of supply cabinet of FIG. 7 that is consistent with supply cabinet 100of FIG. 1 includes top EMI barrier 702 and bottom EMI barrier 704 thatare respectively located on top and bottom of cabinet enclosure 210 andmay shield cabinet enclosure 210 from RF signals. Also shown in FIG. 7enclosure bracket 202 coupled to top EMI barrier 702 and anotherenclosure bracket 202 coupled to bottom EMI barrier 704. Also shown atthe top and bottom of FIG. 7 are finger bracket structures coupled tocabinet door structure 102. The finger bracket structures includebrackets 404 and finger gasket structures 408 that are in contact withenclosure brackets 202 via finger gaskets 402.

FIG. 8 illustrates a top view at the latch-side of an example cabinetdoor structure, according to some aspects of the disclosure. As shown,latch-side 800 essentially includes same elements shown in FIG. 5 withthe difference that cabinet door structure 102 is slightly open. Asshown in FIG. 8, by opening cabinet door structure 102 finger gasket 402separated from enclosure bracket 512 and RF fence bracket 504 may beseparated from cabinet door structure 102. Additionally, finger gasketstructure 408 may be separated from enclosure bracket 508.

FIG. 9 illustrates a top view at the hinge-side of an example cabinetdoor structure, according to some aspects of the disclosure. As shown,hinge-side 900 essentially includes same elements shown in FIG. 6 withthe difference that cabinet door structure 102 is a slightly open. Asshown in FIG. 9, by opening cabinet door structure 102 finger gasket 402may be separated from enclosure brackets 608. Additionally, fingergasket structure 408 may be separated from enclosure bracket 508.

FIG. 10 illustrates a side cutaway view of an example supply cabinet,according to some aspects of the disclosure. As shown, cutaway view 1000of supply cabinet of FIG. 10 that is consistent with supply cabinet 100of FIG. 1 includes top EMI barrier 1002 that is consistent with EMIbarrier 702 of FIG. 7 and is located at the top of cabinet enclosure210. Cutaway view 1000 also includes enclosure bracket 202 that iscoupled to EMI barrier 1002. Also shown are cabinet door structure 102and a finger bracket structure that is coupled to cabinet door structure102. The finger bracket structure that includes finger gasket structure408 coupled to bracket 404 may be in contact with enclosure brackets 202via finger gaskets 402. The cabinet door structure 102 includes outerborder area 304 and inner border area 312. The finger bracket structureis coupled to top portion of inner border area 312. Also shown in FIG.10 are clearing distance 1004 between outer border area 304 and bracket404 of the finger bracket structure as well as escape gap 1006 betweenthe bracket 404 and enclosure bracket 202. In some examples, FIG. 10 isa close-up view, at top portion, of FIG. 7.

FIG. 11 illustrates a flow diagram of an example process of sealing asupply cabinet, according to some aspects of the disclosure. Notably,one or more steps of process 1100 described herein may be omitted,performed in a different sequence, and/or combined with other processesfor various types of applications contemplated herein. Process 1100 canbe performed to seal supply cabinets 100 and 200 of FIGS. 1 and 2.

The process 1100 begins at step 1102; a door structure is mounted overan opening of the cabinet enclosure. The door structure comprises a bodyhaving a first interface and a second interface. As shown in FIG. 2,cabinet door structure 102 is mounted over cabinet enclosure 210. Insome examples, the cabinet enclosure is an EMI shielded cabinetenclosure and cabinet door structure 102 includes an EMI shielded body.Cabinet door structure 102 may include a first surface and the secondsurface opposite to the first surface.

In step 1104, the first surface is faced to the inside of cabinetenclosure 210 when cabinet door structure 102 closes. As shown in FIG.2, door structure 102 has a first surface that when cabinet doorstructure 102 closes faces inside of cabinet enclosure 210 that may bean EMI shielded cabinet enclosure.

In step 1106, one or more finger bracket structures are mounted to thefirst surface. Each finger bracket structure may comprise a bracket andone or more finger gaskets. As shown in FIG. 3, finger bracketstructures 302 are mounted to inside surface 300 of cabinet doorstructure 102. As shown in FIG. 4, each finger bracket structure 302includes bracket 404 and one or more finger gaskets 402. In someexamples, two or more finger gaskets 402 are coupled to create fingergasket structure 408.

In step 1108, one or more enclosure brackets are mounted around an edgeof the opening of the cabinet enclosure 210 that may be an EMI shieldedcabinet enclosure. As shown in FIG. 2, enclosure brackets 202 arecoupled to edges of cabinet enclosure 210. In some embodiments,enclosure brackets 202 are coupled to a doorframe mounted around theedges of cabinet enclosure 210. In some examples, enclosure bracket 202may protrude outside cabinet enclosure 210. Also, as shown in FIG. 5,enclosure bracket 508 that is coupled to top-side portion 112 ofdoorframe and protrudes inside a clearing distance at the top portion ofinner border area 312. Additionally, enclosure brackets 512 that iscoupled to the latch-side portion 108 of doorframe protrudes to clearingdistance 506 at the latch-side portion of inner border area 312. Asshown in FIG. 6, enclosure bracket 508 that is coupled to top-sideportion 112 of doorframe may protrude inside the clearing distance (notshown) at the top portion of inner border area 312. Additionally,enclosure brackets 608 that is coupled to the hinge-side portion 110 ofdoorframe protrudes to clearing distance 610 at the hinge-side portionof inner border area 312.

In step 1110, one or more finger gaskets are caused to come into contactwith one or more enclosure brackets when closing the door structure. Asshown in FIG. 5, by closing the cabinet door structure 102, enclosurebracket 512 comes into contact with one or more finger gaskets 402,which creates an EMI shield at the latch-side portion 108 of doorframebetween the doorframe and cabinet door structure 102. Additionally,finger gaskets 402 (not shown) of finger gasket structure 408 at the topportion of inner border area 312 come into contact with enclosurebracket 508, which creates an EMI shield at top-side portion 112 ofdoorframe between the doorframe and cabinet door structure 102. As shownin FIG. 6, by closing cabinet door structure 102, enclosure bracket 608comes into contact with one or more finger gaskets 402, which creates anEMI shield at the hinge-side portion 110 of doorframe between thedoorframe and cabinet door structure 102. Similarly, an EMI shield maybe created at bottom-side portion 114 of doorframe between the doorframeand cabinet door structure 102.

In step 1112, cabinet enclosure is sealed by closing the door structure.As described, cabinet enclosure 210 may be EMI shielded. Additionally, abody of cabinet door structure 102 may also be EMI shielded. In someexamples, there may be small openings between cabinet door structure 102and one or more of hinge-side portion 110 of the doorframe, top-sideportion 112 of doorframe, bottom-side portion 114 of doorframe, andlatch-side portion 18 of doorframe. Thus, RF signals may pass throughthe openings between cabinet door structure 102 and one or more portionsof doorframe and as a result, cabinet enclosure 210 may not be EMIshielded, e.g., may not be sealed from RF signals. As described above,by closing cabinet door structure 102 over cabinet enclosure 210, fingergaskets 402 come into contact with enclosure branch 202 at hinge-sideportion 110, top-side portion 112, bottom-side portion 114, andlatch-side portion 108 of the doorframe. Thus, the supply cabinetbecomes EMI shielded.

The present disclosure is provided to enable any person skilled in theart to practice the various aspects described herein. The disclosureprovides various examples of the subject technology, and the subjecttechnology is not limited to these examples. Various modifications tothese aspects will be readily apparent to those skilled in the art, andthe generic principles defined herein may be applied to other aspects.

A reference to an element in the singular is not intended to mean “oneand only one” unless specifically so stated, but rather “one or more.”Unless specifically stated otherwise, the term “some” refers to one ormore. Pronouns in the masculine (e.g., his) include the feminine andneuter gender (e.g., her and its) and vice versa. Headings andsubheadings, if any, are used for convenience only and do not limit theinvention.

The word “exemplary” is used herein to mean “serving as an example orillustration.” Any aspect or design described herein as “exemplary” isnot necessarily to be construed as preferred or advantageous over otheraspects or designs. In one aspect, various alternative configurationsand operations described herein may be considered to be at leastequivalent.

As used herein, the phrase “at least one of” preceding a series ofitems, with the term “or” to separate any of the items, modifies thelist as a whole, rather than each item of the list. The phrase “at leastone of” does not require selection of at least one item; rather, thephrase allows a meaning that includes at least one of any one of theitems, and/or at least one of any combination of the items, and/or atleast one of each of the items. By way of example, the phrase “at leastone of A, B, or C” may refer to: only A, only B, or only C; or anycombination of A, B, and C.

A phrase such as an “aspect” does not imply that such aspect isessential to the subject technology or that such aspect applies to allconfigurations of the subject technology. A disclosure relating to anaspect may apply to all configurations, or one or more configurations.An aspect may provide one or more examples. A phrase such as an aspectmay refer to one or more aspects and vice versa. A phrase such as an“embodiment” does not imply that such embodiment is essential to thesubject technology or that such embodiment applies to all configurationsof the subject technology. A disclosure relating to an embodiment mayapply to all embodiments, or one or more embodiments. An embodiment mayprovide one or more examples. A phrase such an embodiment may refer toone or more embodiments and vice versa. A phrase such as a“configuration” does not imply that such configuration is essential tothe subject technology or that such configuration applies to allconfigurations of the subject technology. A disclosure relating to aconfiguration may apply to all configurations, or one or moreconfigurations. A configuration may provide one or more examples. Aphrase such a configuration may refer to one or more configurations andvice versa.

In one aspect, unless otherwise stated, all measurements, values,ratings, positions, magnitudes, sizes, and other specifications that areset forth in this specification, including in the claims that follow,are approximate, not exact. In one aspect, they are intended to have areasonable range that is consistent with the functions to which theyrelate and with what is customary in the art to which they pertain.

It is understood that the specific order or hierarchy of steps,operations or processes disclosed is an illustration of exemplaryapproaches. Based upon design preferences, it is understood that thespecific order or hierarchy of steps, operations or processes may berearranged. Some of the steps, operations or processes may be performedsimultaneously. Some or all of the steps, operations, or processes maybe performed automatically, without the intervention of a user. Theaccompanying method claims, if any, present elements of the varioussteps, operations or processes in a sample order, and are not meant tobe limited to the specific order or hierarchy presented.

All structural and functional equivalents to the elements of the variousaspects described throughout this disclosure that are known or latercome to be known to those of ordinary skill in the art are expresslyincorporated herein by reference and are intended to be encompassed bythe claims. Moreover, nothing disclosed herein is intended to bededicated to the public regardless of whether such disclosure isexplicitly recited in the claims. No claim element is to be construedunder the provisions of 35 U.S.C. § 112 (f) unless the element isexpressly recited using the phrase “module for” or, in the case of amethod claim, the element is recited using the phrase “step for.”Furthermore, to the extent that the term “include,” “have,” or the likeis used, such term is intended to be inclusive in a manner similar tothe term “comprise” as “comprise” is interpreted when employed as atransitional word in a claim.

What is claimed is:
 1. A shield assembly comprising: a closing structureconfigured to be mounted over an opening of an electromagneticinterference (EMI) shielded enclosure, the closing structure comprising:an inner surface configured to face an inside of the EMI shieldedenclosure when the closing structure is closed; and a finger bracketstructure mounted on the inner surface, the finger bracket structurecomprising a bracket and one or more finger gaskets coupled to thebracket; and an EMI shielded gasket comprising a rod coupled to a framedisposed around the opening of the EMI shielded enclosure, wherein therod is shielded from contacting a metal surface when the closingstructure is open and when the closing structure is closed.
 2. Theshield assembly of claim 1, wherein the rod comprises a semi-cylindricalshape and is made of fabric over foam.
 3. The shield assembly of claim1, wherein the rod is coupled to a hinge side of the closing structure.4. The shield assembly of claim 3, wherein the rod extends in parallelto the hinge side of the closing structure from top to bottom of the EMIshielded enclosure and is coupled between a hinge side of the frame andthe closing structure.
 5. The shield assembly of claim 1, wherein therod reduces a slot between the closing structure and the frame, andwherein the rod is configured to shield an edge of the EMI shieldedenclosure.
 6. The shield assembly of claim 1, further comprising: aradio frequency (RF) transceiver inside the EMI shielded enclosure,wherein the RF transceiver is configured to transmit an RF signal todetect wirelessly activated tags inside the EMI shielded enclosure. 7.The shield assembly of claim 1, wherein the one or more finger gasketsare configured to contact one or more enclosure brackets mounted aroundan edge of the opening of the EMI shielded enclosure when the closingstructure is closed, and wherein a combination of the one or more fingergaskets in contact with the one or more enclosure brackets is configuredto create an EMI shield at the edge of the opening of the EMI shieldedenclosure.
 8. The shield assembly of claim 7, wherein the EMI shield atthe edge of the opening of the enclosure is a primary EMI barrier, andwherein the rod comprises a secondary EMI barrier at a hinge side of theclosing structure.
 9. The shield assembly of claim 7, wherein the innersurface of the closing structure includes an outer border area and aninner recessed area surrounded by the outer border area, wherein theouter border area extends from the inner recessed area to an edge of theclosing structure, wherein the finger bracket structure is mountedinside the inner recessed area next to the outer border area with aclearing distance of a predefined width between the finger bracketstructure and the outer border area; wherein the one or more enclosurebrackets protrude outside the edge of the opening of the EMI shieldedenclosure and when the closing structure is closed the one or moreenclosure brackets extend into the clearing distance between the fingerbracket structure and the outer border area; and wherein the one or morefinger gaskets are configured to contact the one or more enclosurebrackets in the clearing distance between the finger bracket structureand the outer border area to shield the edge of the opening of the EMIshielded enclosure.
 10. The shield assembly of claim 1, wherein theclosing structure includes an EMI shielded clear window.
 11. The shieldassembly of claim 1, wherein the closing structure comprises a bodyhaving the inner surface, and wherein the body is EMI shielded.
 12. Theshield assembly of claim 1, wherein the frame comprises a top side, abottom side, a hinge side, and a latch side, wherein one or moreenclosure brackets are coupled to at least one of the sides of theframe.
 13. A method of sealing radio frequency (RF) signals inside anelectromagnetic interference (EMI) shielded enclosure, the methodcomprising: configuring a closing structure to be mounted over anopening of the EMI shielded enclosure, wherein the closing structurecomprises an inner surface; facing the inner surface to an inside of theEMI shielded enclosure when the closing structure closes; mounting afinger bracket structure to the inner surface, wherein the fingerbracket structure comprises a bracket and one or more finger gasketscoupled to the bracket; mounting a frame around the opening of the EMIshielded enclosure; coupling an EMI shielded gasket comprising a rod toa hinge side of the frame and a hinge side of the closing structure;shielding the rod from contacting a metal surface when the closingstructure is open; shielding the rod from contacting a metal surfacewhen the closing structure is closed; and attenuating EMI signalspassing through a slot between the closing structure and the frame toshield an edge of the opening of the EMI shielded enclosure.
 14. Themethod of claim 13, further comprising: causing the one or more fingergaskets to contact one or more enclosure brackets mounted around theedge of the opening of the EMI shielded enclosure when the closingstructure is closed; and creating an EMI shield at the edge of theopening of the enclosure with a combination of the one or more fingergaskets in contact with the one or more enclosure brackets.
 15. Themethod of claim 14, further comprising: forming a primary EMI barrierwith the EMI shield at the edge of the opening of the enclosure; andforming a secondary EMI barrier with the rod at the hinge side of theclosing structure.
 16. The method of claim 14, wherein the inner surfaceof the closing structure includes an outer border area and an innerrecessed area surrounded by the outer border area, wherein the outerborder area extends from the inner recessed area to an edge of theclosing structure, wherein the method further comprises: mounting thefinger bracket structure inside the inner recessed area next to theouter border area; and providing a clearing distance of a predefinedwidth between the finger bracket structure and the outer border area.17. The method of claim 16, further comprising: arranging the one ormore enclosure brackets to protrude outside the edge of the opening ofthe EMI shielded enclosure; and extending the one or more enclosurebrackets into the clearing distance between the finger bracket structureand the outer border area when the closing structure closes.
 18. Themethod of claim 13, further comprising: providing an RF transceiverinside the EMI shielded enclosure; and transmitting an RF signal todetect wirelessly activated tags inside the EMI shielded enclosure.